Screw up

[Joe Parish]

I dimpled the holes in the top of both skins(and ribs) on the HS where the empennage fairing will attach later. Will it be a issue getting the nut plates on with the skin and rib dimpled? I have no experience with nut plates yet so I am looking for input. Thanks

[Spike]

You can un dimple things once. I have done it very successfully with a hand squeezer and flag sets. No biggie, fix it and keep going.


Spike

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-----Original message-----

From: RB Lists - General Construction <support@rivetbangers.com>
To: generalconstruction@rivetbangers.com
Sent: Sat, Jan 1, 2011 02:49:37 GMT+00:00
Subject: Screw up



I dimpled the holes in the top of both skins(and ribs) on the HS where the empennage fairing will attach later. Will it be a issue getting the nut plates on with the skin and rib dimpled? I have no experience with nut plates yet so I am looking for input. ThanksJoe N525XC reserved Empennage in progress RV-9 rivetbangers.com - Discussion topic http://www.rivetbangers.com/forums/viewtopic.php?p=35977#35977

Submitted via email

[cjensen]

I did the same thing Joe...like Spike says, just flatten them back out and move on!

[Joe Parish]

Thanks guys, I did not realize I should not have dimpled them until I was dimpling the VS skin. The HS is done but I will have to undimple both the skin and rib at the same time. I made the assumption on the HS that they should be dimpled instead of asking. I stoppped and inquired before I dimpled the VS skin and found out I should not have dimpled the HS skin in those 10 holes. Moving on Thanks!

[hydroguy2]

almost need to change the thread title, this is more of an "oops" and a right of passage.

One thing to help in the future.

1. get the drawing and the skins laid out.

2. grab a sharpie and mark where different rivets are placed or nutplates.

I would circle some of the different ones or maybe put an X over some holes. special length rivets I would just write 4-7(or whatever) next to it.

[Joe Parish]

I do use a sharpie marker quite a bit. I made an ASSumption on the HS skin which I should never do. I thought the holes should be dimpled even though the emp fairing attached there. Live and learn!

[hydroguy2]

IF I could locate my 20/20 hindsight glasses I would let you borrow them to find problems before they occur.

[smithhb]

I do use a sharpie marker quite a bit. I made an ASSumption on the HS skin which I should never do. I thought the holes should be dimpled even though the emp fairing attached there. Live and learn!

Joe, if you dimpled where the fairing attaches, why not just leave them dimpled and use countersunk platenuts (K1100-08 ). Build on.

[Joe Parish]

Thanks for the advice Brett. I have not dealt with platenuts and did not know about countersunk platenuts. I learn a few new things every day on this project.

[airguy]

I did the same thing Joe...like Spike says, just flatten them back out and move on!

Same here - you can do it ONCE.